Genghis walked slowly to the center of the path, staring up at the jubilant defenders. He could hear their cheering and it was hard to make himself turn his back to them. When he did, the sound intensified and he walked stiffly away until he knew he was lost to sight.

On the highest point of the wall, Liu Ken watched him go, his satisfaction straining the impassive mask he showed the soldiers around him. They were smiling openly and clapping each other on the back as if they had won a great victory. He felt his temper rising at their foolishness.

"Change the shift and get five Sui of fresh archers up here," he snapped. The smiles vanished. "We've lost a thousand shafts in the gorge, so make sure the quivers are full once again. Give every man a drink of water."

Liu rested his hands on the ancient stone, looking into the pass. They had killed almost all of those who had come into range, and he was pleased with the archers. He made a note to congratulate the officer of the wall. The sound of hammers had worried him, but the door had held. Liu Ken smiled tightly to himself. If it hadn't, the Mongols would have run straight into a high-walled compound with archers on every side above them. The fort was beautifully designed and he was pleased his tour of duty had not ended before he had seen this test of its construction.

He frowned at the broken pieces of wood on the sand. Everything he had been told of the tribes suggested that if they came at all, they would attack like wild animals. The barricade showed shrewd planning and it nagged at him. He would be sure to put it in his report to the governor of the province. Let him decide how best to respond. Liu mused to himself as he looked down at the scattered dead. The stones had never been used before. Most were moss-covered from years of lying ready on the wall. Those too would have to be replenished from the stores, though there were clerks for that sort of mundane activity. It was about time they did more than allocate food and water for the men, he considered.

Liu turned at the clatter of sandals and swallowed his dismay at the sight of the fort commander coming up the steps to the wall. Shen Ti was an administrator rather than a soldier, and Liu braced himself to answer his inane questions. The climb up to the wall had left the fat man gasping, so Liu had to look away rather than acknowledge his superior's weakness. He waited without speaking as Shen Ti joined him at the wall and looked down with bright eyes, his breathing still labored.

"We have sent the dogs running," Shen Ti said, recovering. Liu inclined his head in silent agreement. He had not seen the commander during the attack. No doubt he had been cowering with his concubines in his private rooms on the other side of the fort. With wry humor, Liu thought of the words of Sun Tzu on defensive war. Shen Ti was certainly adept at hiding in "the recesses of the earth," but only because Liu had been there to scatter the attackers. Still, he owed courtesy to the man's rank.

"I will leave the bodies for the rest of the day, lord, to be certain none of them are faking death. I will send men out to gather weapons and collect shafts at dawn."

Shen Ti peered down at the bodies in the canyon. He could see boxes lying on the ground as well as a beautiful spear as long as a man. He knew that if he left it to the soldiers, anything valuable would vanish into private collections. Something sparkled in the green and gold sand and he squinted at it.

"You will supervise them, Liu. Send men down now to check the gate is not damaged. Have them bring anything valuable to me to examine."

Liu hid a wince at the fat commander's naked greed. The Uighurs never had anything of value, he thought. There was no reason to expect more than a few bits of shiny metal from those ragged tribesmen. Yet he was not a noble and he bowed as low as he could in full armor.

"As you command, lord." He left Shen Ti still staring down, a faint smile touching his fleshy lips. Liu snapped his fingers to attract the attention of a group of archers who were taking turns drinking from a water bucket.

"I am going out to strip the dead." He took a deep breath, aware that he had allowed his bitterness at the shameful order to show. "Get back to your positions and be ready for another attack."

The men scurried to obey, the water bucket landing with a clang and spinning untended as they rushed back to the wall. Liu sighed to himself before concentrating on the task at hand. No doubt the Uighurs would be made to pay for the attack when the king heard about it. In the peaceful lands of the Xi Xia, it would be the talk of the court, perhaps for months. Trade would be strangled for a generation and punishment raids would be sent out against every Uighur settlement. Liu had no taste for that sort of war, and he considered asking for a transfer back to Yinchuan city. They always needed good guards with experience.

He gave crisp orders to a dozen spearmen to follow him and walked down the cool steps to the outer gate. From the inside, it looked untouched by the assault, and in the shadow of the walls, he considered the fate of anyone foolish enough to break it down. He would not like to be among them, he thought. It was second nature to him to check the inner gate was secure before he raised his hand to the outer locking bar. Sun Tzu was perhaps the greatest military thinker the Chin had ever produced, but he did not consider the difficulties of greedy men like Shen Ti giving the orders.

Liu took a deep breath and pushed open the door, letting in a beam of hard sunlight. The men behind him shuffled in readiness and he nodded to their captain.

"I want two men to stay and guard the door. The rest of you are to collect usable shafts and anything else that might be valuable. If there is trouble, drop it all and run for the gate. There will be no talking and not one of you will go more than fifty paces, even if there are emeralds the size of duck eggs lying in the sand. Acknowledge my orders."

The soldiers saluted as one and their captain tapped two on the shoulder to remain on guard. Liu nodded, squinting out into the sun as his eyes adjusted. He could not expect high standards from the sort of soldier who ended up in the fort. Almost to a man, they had made some error in the standing army, or offended someone with influence. Even Shen Ti had made some secret error in his political past, he was sure, though the fat man would never unburden himself to a common soldier, no matter what rank he held.

Liu let out a long, low breath, checking a mental list of the defenses. He had done all he could, but still there was a feeling in his bones that he did not like. He stepped over a body, noting that the man wore armor very similar to his own. He frowned at that. There was no record of the Uighurs copying Chin armor. It was rough, but of serviceable quality, and Liu found his sense of unease growing.

Ready to leap back, he trod heavily on an outstretched hand. He heard a bone break, and at the lack of movement, he nodded and went further out. The dead lay thickest near the gate and he could see two sprawling men with arrows through their throats. Heavy hammers had fallen near them and Liu picked one up, propping it against the wall to be taken in on his return. It too was well made.

As he narrowed his eyes on the end of the pass, his men fanned out, stooping to pick up weapons from the sand. Liu began to relax a little, seeing two of them yanking arrows from a body that resembled a porcupine for the density of the strikes. He strode out of the wall's shadow, wincing at the sudden brightness. Thirty paces ahead of him lay two boxes, and he knew Shen Ti would be watching to see if he found something of worth in them. Why the tribesmen would have brought gold or silver to an attack Liu could not fathom, but he walked across the baking sand toward them, his hand ready on his sword. Could they contain snakes or scorpions? He had heard of such things being used to attack cities, though usually they were thrown over the walls. The tribesmen had brought no catapults or ladders on their assault.